Setting text for NSTextView with an NSString variable, considering reference counting
I have the following code in a function in my .m file:
desc = [my executeFunction]; // desc is returned by executeFunction
data = [desc objectAtIndex:0]; // data is declared in the .h file data2 = 开发者_高级运维[desc objectAtIndex:1]; [myTextField setString:data]; // myTextField is connected to an NSTextView in IB [myTextField setString:data2];
How am I supposed to be writing the 4th and 5th lines? How / where do I release data and data2?
You don't. You haven't received data
or data2
from a method with a selector containing alloc
, new
or copy
or a function with a name containing Create
, so you are not responsible for releasing them.
Have a look at http://boredzo.org/cocoa-and-cocoa-touch-intro/.
Revise the Cocoa Memory Management Guidelines and determine whether releasing is necessary in this case. There are very specific, yet very simple rules regarding a retain
and release
pattern. Commit these rules to memory (pun intended).
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